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Compression molding of hybrid composite material using waste concrete powder and bagasse fiber

Authors :
Yasuyuki KANDA
Ryosuke HIGA
Source :
Nihon Kikai Gakkai ronbunshu, Vol 90, Iss 936, Pp 24-00038-24-00038 (2024)
Publication Year :
2024
Publisher :
The Japan Society of Mechanical Engineers, 2024.

Abstract

This study investigated the compression molding of hybrid composite materials using waste concrete powder (WCP) and bagasse fiber (BF) as a novel reuse procedure for waste concrete. The matrix of the composite material was applied to powder-type polyethylene (PE) to facilitate the compression molding of the gas vent. The WCP was obtained by milling siliceous waste concrete using a pot mill procedure. The main constituent of the WCP was quartz. The flexural strength and modulus of the hybrid composite material, in which BF was added to mix the powder with PE and WCP, increased with increasing BF content and exhibited a maximum value at a BF content of 30 wt. %. Next, to improve the mechanical properties of the hybrid composite material, we attempted to improve the adhesiveness between PE and BF by increasing the molding temperature. The mechanical properties of the hybrid composite material with a BF content of 40 wt. % exhibited the highest values at a molding temperature of 413 K. Furthermore, by increasing the WCP content in the hybrid composite material with a BF content of 40 wt. %, the flexural strength exhibited the maximum value at a WCP content of 20 wt. %. Therefore, it was revealed that the composite material using PE powder and WCP could be strengthened by adding BF.

Details

Language :
Japanese
ISSN :
21879761
Volume :
90
Issue :
936
Database :
Directory of Open Access Journals
Journal :
Nihon Kikai Gakkai ronbunshu
Publication Type :
Academic Journal
Accession number :
edsdoj.b0e70f0663444cddafb9429592e9415b
Document Type :
article
Full Text :
https://doi.org/10.1299/transjsme.24-00038